Open Source Wobble Switch

A wobble switch is a switch that can be activated by moving a ball or rod in any direction The switch typically has a fairly low activation force and can be activated with various parts of the body including: hands, head, chin, tongue through cheek. The springiness means they can be useful for users who are able to perform gross motor movements.

(Image: AMDi Wobble Switch)

A number of commercial wobble switches are available, but they are quite expensive.

Commercially Available Wobble Switches

Name Vendor Cost Link
Ultimate Assistive Technology Switch Enabling Devices $80 USD Switch, $150 USD w/ mount
Wobble Switch Prentrom $195
Wobble Switch AbleNet $100 USD
Wobble Switch AMDi $100 USD

A cost-effective alternative has been specifically requested by a children’s rehab program.

The purpose of this thread is to assess how much interest there is in this design, and what sort of features are important.

  • An open source wobble switch design would be useful for me or someone I know.
  • I would like to test prototypes and provide feedback.

0 voters

Please comment below:

  1. Any important features this design should have
  2. Any existing open source projects

We’ve started some initial design work on an open-source Wobble Switch, and have a functional prototype:


The design currently uses a commercially available limit switch (e.g.®-ME-8166-Flexible-Spring-Momentary/dp/B07KM22TZ2, $18 for 3), some fasteners, and some 3D printed components. This design is a work in progress, but preliminary files are available on GitHub:

Over the next while, we will be looking at a more modular design for the wand topper and developing a full set of documentation. If you have any ideas or want to get involved in the design and/or testing, let us know.

1 Like

I’m not here for posting spoilers, but are you going to let people know it’s public now?

:raised_hand_with_fingers_splayed:t2: on the high-five option!

An initial version of this switch has been released to the MMC Library here:

The design could benefit from some more testing, so you can submit a request through the site or add a message to that topic.